<template>
    <div class="login-wrap">
        <div class="ms-login">
            <div class="ms-title">Onion云管理系统</div>
            <el-form :model="param" :rules="rules" ref="login" label-width="0px" class="ms-content">
                <el-form-item prop="username">
                    <el-input v-model="param.username" placeholder="用户名称">
                        <el-button slot="prepend" icon="el-icon-lx-people"></el-button>
                    </el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input type="password"
                              placeholder="用户密码"
                              v-model="param.password"
                    >
                        <el-button slot="prepend" icon="el-icon-lx-lock"></el-button>
                    </el-input>
                </el-form-item>
                <el-form-item prop="captcha">
                    <el-input placeholder="验证码"
                              v-model="param.captchaCode"
                              @keyup.enter.native="submitForm()"
                    >
                        <el-button slot="prepend" icon="el-icon-lx-lock"></el-button>
                        <span slot="append">
                            <img :src="captchaImage" style="width:66px"/>
                        </span>
                    </el-input>
                </el-form-item>
                <div class="login-btn">
                    <el-button type="primary" @click="submitForm()">登录</el-button>
                </div>
            </el-form>
        </div>
    </div>
</template>

<script>

import { doLogin, doGenCaptcha } from '../common/login';
import Cookies from 'js-cookie';
import { OnionUtils } from '../../utils/onion-utils';

export default {
    data: function() {
        return {
            param: {
                username: 'admin',
                password: '123456',
                captchaCode: '',
                captchaSign: ''
            },
            captchaImage: "",
            rules: {
                username: [{ required: true, message: '请输入用户名称', trigger: 'blur' }],
                password: [{ required: true, message: '请输入用户密码', trigger: 'blur' }],
                captchaCode: [{ required: true, message: '请输入验证码', trigger: 'blur' }],
            },
        };
    },
    created() {
        this.genCaptcha();
    },
    methods: {
        //获取验证码
        genCaptcha(){
            doGenCaptcha().then(result => {
                let data = result.data;
                this.param.captchaSign = data.captchaSign;
                this.captchaImage = "data:image/png;base64," + data.captchaImage;
            });
        },
        submitForm() {
            if(OnionUtils.isEmpty(this.param.username)){
                this.$message.warning("用户名称不能为空！");
                return;
            }
            if(OnionUtils.isEmpty(this.param.password)){
                this.$message.warning("用户密码不能为空！");
                return;
            }
            if(OnionUtils.isEmpty(this.param.captchaCode) || this.param.captchaCode.length<4){
                this.$message.warning("验证码非法！");
                return;
            }
            doLogin(this.param).then(result => {
                if(result.code == 0){
                    Cookies.set("x-token", result.data);
                    this.$message.success('登录成功');
                    localStorage.setItem('ms_username', this.param.username);
                    this.$router.push('/');
                }else{
                    this.$message.error('登陆失败:'+result.message);
                    return false;
                }
            });
        },
    },
};
</script>

<style scoped>
.login-wrap {
    position: relative;
    width: 100%;
    height: 100%;
    background-image: url(../../assets/img/login-bg.jpg);
    background-size: 100%;
}
.ms-title {
    width: 100%;
    line-height: 50px;
    text-align: center;
    font-size: 20px;
    color: #fff;
    border-bottom: 1px solid #ddd;
}
.ms-login {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 350px;
    margin: -190px 0 0 -175px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.3);
    overflow: hidden;
}
.ms-content {
    padding: 30px 30px;
}
.login-btn {
    text-align: center;
}
.login-btn button {
    width: 100%;
    height: 36px;
    margin-bottom: 10px;
}
.login-tips {
    font-size: 12px;
    line-height: 30px;
    color: #fff;
}
</style>